﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace QuadraticEquationSolver
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (txtA.Text == "" || txtB.Text == "" || txtC.Text == "")
            {
                lblError.Visible = true;
                lblError.Text = "some field is missing";
            }
            else
            {
                QuadraticEquation qe = new QuadraticEquation(float.Parse(txtA.Text), float.Parse(txtB.Text), float.Parse(txtC.Text));
                lblKetQua.Text = qe.result();
            }
        }
    }
}
